Injector



(No Model.)

O. L. HALLBBGK.

INJEGTOR.

No. 450,885. Patented Apr. 21,1891.

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OTTO L HALLBEOK, OF lVEST SALEM, ILLINOIS.

iNJECTOR.

SPECIFICATION forming part of Letters Patent No. 450,885, dated April 21, 1891.

Application tiled November l, 1890. Serial No. 370,019. (No model.)

To all whom, t may concern:

Be it known that I, OTTO L. I-IALLBECK, a citizen of the United States, residing at West Salem, in the county of Edwards and State of Illinois, have invented certain new and useful Improvements in Injectors, of which the following is a speciiication.

This invention relates to injectors and inspirators; and its object is to prevent the usual wear on the delivery-tubes of all classes of injectors and inspirators by the pressure and velocity of the water as it passes through said tubes.

The invention consists in constructing a lining of some metal harder than the metal of the deliver r-t.ube, inserting said lining into the delivery-tube, and securing it there, as will be hereinafter fully described and claimed.

In the accompanying drawings, forming part oi' this specification, Figure l is a vertical sectional view of the main portion of an inspirator, showing the lining in position in the upper part of the delivery-tube. Fig. 2 is an enlarged detached sectional view of the delivery-tube, as shown in Fig. l. Fig. 3 is a sectional view of a delivery-tube after it has been used without the lining, showing the cavities worn by the pressure of the water. Fig. 4 is a sectional view of an automatic injector with the delivery-tube lining applied. Fig. 5 is another form of injector with the lining secured throughout the delivery-tube. Fig. 6 is an enlarged sectional View of a delivery-tube with the lining secured therein below the vent or cut-out. Fig. 7 is a sectional view of a delivery-tube of an automatic injector, showing cavities worn by the pressure of the water. Fig. 8 is a similar View showing the tube-lining in position above and below the vent or cut-out.

The same letters of reference denote the same parts throughout the several figures.-

A represents the steam-entrance; B, the water opening; C, the feed to the steamboiler; D, the overiiow-valve, and E the delivery-tube of the inspirator F, as shown by Fig. 1.

The delivery-tube E employed in the inspirator F is represented on a larger scale in Fig. 3, and shows the cavities a caused by the velocity and pressure of the water in a delivery-tube of ordinary construction. To obviate and entirely prevent such wear on the delivery-tubes, they are bored out and screw-threaded, so as to accommodate the screw-threaded lining G of some metal harder than the metal of the delivery-tube, and inserted therein to any desired extent; but to prevent the cavities a being made as shown 6o in Fig. 3, it is only necessary to insert a short lining down to the smallest opening in the delivery-tube, as clearly shown by Fig. 2.

Referring to Figs. 4 and 5, representing two different forms of automatic injectors, each having the steam-inlet A, water-opening B, steam-boiler connection C, and overiow-valve D, with the usual steam-jet H and suctionjet I, the lining G is inserted into the delivery-tube throughout the entire length by 7o screwing it in from the lower end of the delivery-tube, and when the deliverytube is a long one, as shown by Fig. 5,1he lining is screwed in from either end of the said tube.

lVhere it is desired to protect only a portion of the delivery-tube, as shown in Fig. 6, the lining is inserted through the opening b, and where it is necessary to protect the entire tube one part oi the lining G is inserted through one end of the tube to the vents or 8o cut-out c and the otherpart inserted through the opposite end of the delivery tube, as clearly shown by Fig. S.

It will be observed that should the lining in the lower part of the tube become worn at the vents or cut-out the worn end has simply to be iiled off and the lining screwed up flush with the said vents or cut-out, thus saving the expense of not only a new delivery-tube, but the expense of another lining. Although I prefer to use some harder metal than the metal of the delivery-tube, such as steel, the delivery-tubes being cast of brass, I do not wish to be understood as limiting myself to any particular metal for the tube-lining or f the manner of inserting it in the deliverytube, but reserve to myself the right to use such metal as desired and to secure the said lining in the delivery-tube in any way found to be best and most convenient.

Having thus described my invention, whatI claim as new, and desire to secure by Letters Patent, is-

l. In an injector, the combination, with the IOC delivery-tube having vents or a out-out, of a lining constructed of harder metal than the delivery-t ube and adj ustably secured therein, so as to be moved up to said vents or eut-out, and the worn portion thereof removed, in consequence of which the constant Wear and frequent renewal of the delivery-tube is obviated, substantially as shown and described.

2. In an injector, the combination, with the combining-tube and the delivery-tube having its walls bored out or otherwise removed and screw-threaded, of a. screw-threaded lining Constructed of harder metal than the tube, wherein said lining is adjustably secured,

so that the lining may be screwed up and the- 15 worn portion thereof removed, rand so as to render the overflow-space between the comblning and delivery tubes always the same, and

-to obviate the removal or adjustment of the said delivery tube, substantially as shown and described.

In witness whereof I hereunto set myhand in the presence of two witnesses. 

